TM820H-400

Summary

Product Identification

The product is a Toray TM800H series high-pressure seawater reverse osmosis (RO) element, specifically the TM820H-400 model. It utilizes a Cross Linked Fully Aromatic Polyamide Composite membrane.

Operating Limits

• Maximum Operating Pressure: 1200 psi (8.4 MPa)
• Maximum Feed Water Temperature: 113 ˚F (45 ˚C)
• Maximum Feed Water SDI₁₅: 5
• Feed Water Chlorine Concentration: Not Detectable
• Feed Water pH Range, Continuous Operation: 2-11
• Feed Water pH Range, Chemical Cleaning: 1-12
• Maximum Pressure Drop per Element: 15 psi (0.1 MPa)
• Maximum Pressure Drop per Vessel: 60 psi (0.4 MPa)

Test Conditions

The following parameters were used for performance testing:

• Feed Water Pressure: 800 psi (5.52 MPa)
• Feed Water Temperature: 77 ˚F (25 ˚C)
• Feed Water Concentration: 32,000 mg/l NaCl
• Recovery Rate: 8 %
• Feed Water pH: 7

Product Water

Minimum Performance at Test Conditions:

• Minimum Salt Rejection: 99.5 %
• Minimum Product Flow Rate:
  • TM820H-370: 4,500 gpd (17 m³/d)
  • TM820H-400: 4,800 gpd (18 m³/d)

Rated Performance (Nominal):

• TM820H-370
  • Membrane Area: 370 ft² (34 m²)
  • Salt Rejection: 99.75 %
  • Product Flow Rate: 5,600 gpd (21 m³/d)
• TM820H-400
  • Membrane Area: 400 ft² (37 m²)
  • Salt Rejection: 99.75 %
  • Product Flow Rate: 6,000 gpd (22.5 m³/d)

Mechanical / Hydraulic

• Element Diameter: 8 inch (for both TM820H-370 and TM820H-400)
• Overall Length: 40 inches (1016 mm)
• Element Diameter (nominal): 7.9 inches (201 mm)
• Center Tube Diameter: 1.125 inches (29 mm)

Operating Information

Elements are wet tested and treated with a 1% by weight percent sodium bisulfite (NaHSO₃) storage solution before being vacuum packed. For short-term storage or shutdown, it is recommended to immerse elements in a protective solution of 500 - 1,000 ppm food-grade sodium bisulfite dissolved in permeate. Permeate from the first hour of operation must be discarded. Using chemicals incompatible with the elements will void the Limited Warranty.

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Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions found in the official OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet